class="latex-formula">
2 answers:
X = -3
Solution:
Distribute
6(x)+(6)(-1)+-x=-21
Combine
(6x+-x) + (-6) = -21
5x + -6 = -21
5x - 6 = -21
Add 6 to both sides
5x -6 + 6 = -21 +6
5x = -15
Divide both sides by 5
5x/5 = -15/5
x = -3
Step-by-step explanation:
Given that:
6(x - 1) - x = -21
Multiply the number outside of the brackets with numbers in the brackets on LHS.
⇛6x - 6 - x = -21
Shift constant from LHS to RHS, changing it's sign.
⇛6x - x = -21 + 6
Subtract the values on LHS and RHS.
⇛5x = -15
Shift the number 5 from LHS to RHS.
⇛x = -15/5
Therefore x = -3
Please let me know if you have any other questions.
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The answer is 3! I hope this helps. I used a calculator to get the answer.
